Please help I am so frustrated because my Genesis heat set paints will not stick to her vinyl fingertips and toes every time I blot them with a mop brush it comes right off is there something I need to do to prepare them before I paint? Also after my second try it looks dirty. Please let me know what Im doing wrong I am trying so hard to do this. I really love bringing the babies to life, and just need help also is there any classes I can take online that you know of?